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Published on: September 20, 2018
The clinical presentation of bradyopsia in children
1Eye Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates; Division of Pediatric Ophthalmology, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia.
Insights
Diagnosing bradyopsia in children is difficult due to normal eye exams. A specific RGS9 gene mutation appears common in the Arabian Peninsula, aiding diagnosis.
Area of Science:
- Ophthalmology
- Genetics
- Pediatrics
Background:
- Bradyopsia (slow visual processing) diagnosis in children is challenging.
- Ophthalmic examinations and visual acuity tests can be misleading in affected children.
Observation:
- This case series describes 5 children from 3 Arab families with bradyopsia.
- All affected children shared a consistent homozygous RGS9 frameshift mutation.
Findings:
- The identified RGS9 mutation is likely a founder mutation for the Arabian Peninsula.
- This genetic finding aids in diagnosing bradyopsia in this population.
Implications:
- Genetic testing for the RGS9 mutation can improve bradyopsia diagnosis in children.
- Understanding the genetic basis of bradyopsia facilitates targeted research and potential therapies.
Abstract:
Diagnosing bradyopsia can be challenging in young children because structural ophthalmic examination is typically normal and visual acuity can improve with pinhole despite no significant refractive error. This case series highlights the clinical presentations and features of 5 affected children (3 Arab families) who harbored the same homozygous RGS9 frameshift mutation, which seems to represent a founder effect for the Arabian Peninsula.
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